如有合适的电路搭配，可以做成警铃报警器，超值！！！原售价1.6,货品全部正品，只是由于最终用户取消订单而造成，现0.90抛售！1Resonant Frequency1000±300Hz2Operating Voltage1～25 Vp-p3Rated CurrentMax.5mA ,At 1KHz 50% duty Square Wave 10Vp-p4Sound Output at 10cmMin. 90dB,At 1KHz 50% duty Square Wave 10Vp-p5Capacitance60000±30% pF At 1KHz6Operating Temperature-20℃～ 70℃7Store Temperature-30℃～ 80℃8Net WeightApprox 7g9RoHSYes